DIRECTION OF AIRFLOW
Fig. 2. The meter’s default initial display after being
powered on
To make an air speed measurement, place the meter in the
airstream leaving the HVAC system duct or register. Be sure to
orient the meter so its vanes are centered in the stream and
its axes are as perpendicular to the stream as possible
(Fig.3).
Fig. 3. How to orient the meter
The upper display will read out the real-time air speed in
units of ft/m.
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